I have the newest ubuntu installed with everything up to date. It's a laptop so there's an integrated microphone in it which does work under windows. It's made by Intel. Alsamixer says HDA Intel PHC. I tried to adjust the microphone in alsamixer but it changes nothing and resets everytime i restart the laptop. It can barely record my voice when im speaking next to the mic very loudly.
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        Install pavucontrol:
sudo apt install pavucontrol
Launch it by running pavucontrol on the command-line, and adjust the volume of the mic in the "Input Devices" tab. You can even go above 100%, although I don't recommend it as it can lead to distorted sound:
 
    
    
        Flimm
        
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